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1. 发明公开

EP2007041A1 Optical amplifier 有权
标题翻译： OptischerVerstärker
公开(公告)号：EP2007041A1
公开(公告)日：2008-12-24
申请号：EP08011071.1
申请日：2008-06-18
申请人： Fujitsu Limited
发明人： Tsuzuki, Tatsuya , Shukunami, Norifumi , Tamura, Yuji , Shimano, Yoshio , Nakata, Masao , Satou, Takashi
IPC分类号： H04B10/17 , H01S5/50 , H01S3/23
CPC分类号： H04B10/2942 , H01S3/06758 , H01S3/1301 , H01S2301/04
摘要： According to an aspect of the embodiment of the invention, an optical amplifier including an input port, an output port, a plurality of amplifying parts, an optical attenuator, a gain controller and an optical attenuator controller. The plurality of amplifying parts includes an optical amplification medium and a pumping light source for generating pump light. The optical attenuator is optically connected between the amplifying parts. The gain controller controls the pump light power of the pump sources, respectively, in such a way that the ratio decreases in accordance with the gain set value increasing and the ratio interpose between a first threshold level and a second threshold level. The optical attenuator controller controls attenuation of the optical attenuator in order to maintain the sum of generating gains of the amplifying parts in the gain set value in accordance with a state of the signal light inputted into the input port.
摘要翻译：根据本发明的实施例的一个方面，一种包括输入端口，输出端口，多个放大部件，光衰减器，增益控制器和光衰减器控制器的光放大器。多个放大部件包括光放大介质和用于产生泵浦光的泵浦光源。光衰减器光学连接在放大部件之间。增益控制器分别控制泵浦光源的泵浦光功率，使得该比率根据增益设定值增加而减小，并且比例介于第一阈值水平和第二阈值水平之间。光衰减器控制器控制光衰减器的衰减，以便根据输入到输入端口的信号光的状态将放大部件的增益的总和保持在增益设定值中。

2. 发明授权

EP2007041B1 Optical amplifier 有权
公开(公告)号：EP2007041B1
公开(公告)日：2018-01-24
申请号：EP08011071.1
申请日：2008-06-18
申请人： Fujitsu Limited
发明人： Tsuzuki, Tatsuya , Shukunami, Norifumi , Tamura, Yuji , Shimano, Yoshio , Nakata, Masao , Satou, Takashi
IPC分类号： H04B10/294 , H01S3/13 , H01S3/067
CPC分类号： H04B10/2942 , H01S3/06758 , H01S3/1301 , H01S2301/04
摘要： According to an aspect of the embodiment of the invention, an optical amplifier including an input port, an output port, a plurality of amplifying parts, an optical attenuator, a gain controller and an optical attenuator controller. The plurality of amplifying parts includes an optical amplification medium and a pumping light source for generating pump light. The optical attenuator is optically connected between the amplifying parts. The gain controller controls the pump light power of the pump sources, respectively, in such a way that the ratio decreases in accordance with the gain set value increasing and the ratio interpose between a first threshold level and a second threshold level. The optical attenuator controller controls attenuation of the optical attenuator in order to maintain the sum of generating gains of the amplifying parts in the gain set value in accordance with a state of the signal light inputted into the input port.

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